Liquid crystal cells – elements and systems – Liquid crystal system – Liquid crystal eyewear
Patent
1994-06-01
1998-05-12
Sikes, William L.
Liquid crystal cells, elements and systems
Liquid crystal system
Liquid crystal eyewear
349 95, G02F 11335
Patent
active
057513830
ABSTRACT:
An image display device based on liquid crystal panels is arranged for outputting a high quality image, specifically one in which the problem of the shadow border between pixels has been remedied. Embodiments of the display device employ various techniques to address the problem. One solution, a multi-pixelating technique, surrounds pixels with virtual images of pixel, where both the spacing and the range of the multi-pixelating are precisely controllable. In other solution, the divergence of the light incident upon the liquid crystal panel is carefully controlled, or the light field emerging from the liquid crystal panel is modulated, in order to project a carefully controlled pixel image intensity distribution onto a diffusely scattering surface. The techniques developed are applicable to color liquid crystal panels as well, and can be employed to perform a precisely interpolated color mixing of neighboring pixels. Some of the embodiments employee a specially designed lighting unit for providing white parallel rays to the liquid crystal device. Because of advantages in areas of size, weight and image quality, the display device is particularly suitable to head mounted displays.
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Conlin David G.
Daley, Jr. William J.
Miller Charles
Sharp Kabushiki Kaisha
Sikes William L.
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